You have been subscribed to a public bug: Various temporary UI freezes when booting Ubuntu 18.10. dmesg reports various amdgpu warnings and errors.
Some examples (please read dmesg attachment for complete overview): [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector ObjectID from Adapter Service for connector index:2! type 0 expected 3 amdgpu: [powerplay] Voltage value looks like a Leakage ID but it's not patched [drm:dc_create [amdgpu]] *ERROR* DC: Number of connectors is zero! t is 0 [drm:amdgpu_uvd_ring_test_ib [amdgpu]] *ERROR* amdgpu: (0)IB test timed out. [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* amdgpu: failed testing IB on ring 12 (-110). [drm:amdgpu_device_ip_late_init_func_handler [amdgpu]] *ERROR* ib ring test failed (-110). [powerplay] [drm:uvd_v6_0_enc_ring_test_ring [amdgpu]] *ERROR* amdgpu: ring 13 test failed [drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block <uvd_v6_0> failed -110 [drm:amdgpu_device_resume [amdgpu]] *ERROR* amdgpu_device_ip_resume failed (-110). [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, last signaled seq=1853, last emitted seq=1853 [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout, last signaled seq=3110, last emitted seq=3110 [drm] No hardware hang detected. Did some blocks stall? [drm] No hardware hang detected. Did some blocks stall? [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma1 timeout, last signaled seq=2249, last emitted seq=2249 amdgpu: [powerplay] failed to send message 261 ret is 0 amdgpu 0000:03:00.0: GPU pci config reset Ubuntu 18.10 (64 bit) 4.18.0-12-generic ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amdgpu bot-comment -- AMDGPU Radeon RX540 system freezes poor performance https://bugs.launchpad.net/bugs/1807511 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp